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Re: [RFI] Experience With this Flexible Raceway

To: rfi@contesting.com
Subject: Re: [RFI] Experience With this Flexible Raceway
From: David Garnier <dgarnier@wi.rr.com>
Date: Wed, 11 Jan 2006 19:58:48 -0600
List-post: <mailto:rfi@contesting.com>

That looks like a neat product!  A flexible "BX" conduit with an
additional 90% braid over-coverage.  I gotta wonder what products
that stuff goes into, tempest things maybe?

Knowing you are in the audio business, what sorts of shieldings are
use for "rock concert" shows?  With the racks of "Crown" amplifiers
driving "walls" of speakers, and the tremendous AC currents being
switched for the light shows - How do they keep the transients and
mag fields out of the Audio or Video for that matter?

(I am always curious about the "sound boards" and I usually make a
beeline over to them and gawk.)  ;-)

 Dave Garnier

Message: 6
Date: Tue, 10 Jan 2006 17:05:26 -0600
From: "Jim Brown" <jim@audiosystemsgroup.com>
Subject: [RFI] Experience With this Flexible Raceway
To: "RFI List" <rfi@contesting.com>
Cc: "dlj@josephson.com" <dlj@josephson.com>
Message-ID: <20060110230546.C41F87D3C@gw1.nlenet.net>
Content-Type: text/plain; charset="us-ascii"

I've got an application for "liquid tight" flexible raceway to shield 
outdoor low voltage wiring that is known to radiate RF trash and be 
picked up by my HF and VHF antennas (160 meters through 2 meters) at 
a low noise mountaintop location. Does anyone have experience with 
the products listed on the webpage below?  I'm thinking of type LA or 


Suggestions/experience with alternative products?  

Jim Brown K9YC

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